中(国)老(挝)昆(明)万(象)铁路景寨隧道6月5日安全贯通。至此，中老铁路全线167座隧道全部贯通，为年底开通运营奠定了坚实的基础。
景寨隧道位于云南省西双版纳傣族自治州景洪市，全长9.5公里。隧道穿越澜沧江断裂带，地质构造复杂，建成开通后火车通过仅需4分钟，建设者却坚守了1600多个日夜。
中老铁路全长1000多公里，建成通车后，昆明至景洪仅需3个多小时，至老挝万象有望实现直达运输、当日通达。
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